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USER_CLUSTERS
Descriptions of user's own clustersColumns ___________________________ SINGLE_TABLE Whether the cluster can contain only a single table CLUSTER_TYPE Type of cluster: b-tree index or hash HASHKEYS If a hash cluster, the number of hash keys (hash buckets) DEGREE The number of threads per instance for scanning the cluster INSTANCES The number of instances across which the cluster is to be scanned BUFFER_POOL The default buffer pool to be used for cluster blocks AVG_BLOCKS_PER_KEY Average number of blocks containing rows with a given cluster key CACHE Whether the cluster is to be cached in the buffer cache PCT_FREE Minimum percentage of free space in a block FUNCTION If a hash cluster, the hash function FREELIST_GROUPS Number of freelist groups allocated in this segment TABLESPACE_NAME Name of the tablespace containing the cluster PCT_USED Minimum percentage of used space in a block KEY_SIZE Estimated size of cluster key plus associated rows INI_TRANS Initial number of transactions FREELISTS Number of process freelists allocated in this segment INITIAL_EXTENT Size of the initial extent in bytes NEXT_EXTENT Size of secondary extents in bytes MIN_EXTENTS Minimum number of extents allowed in the segment MAX_EXTENTS Maximum number of extents allowed in the segment CLUSTER_NAME Name of the cluster PCT_INCREASE Percentage increase in extent size MAX_TRANS Maximum number of transactions
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